Hi Kuntesh,
I wanted to let you know I will be giving a Partner Webinar this Thursday 4/2/2015 on how to add Real-Time Shipping to a site. I will demonstrate how to add in a single provider (FedEx, UPS, etc.) as well as discuss how to leverage 3rd party tools to pull in multiple providers at once. You can register for the webinar inside the partner portal!
I will be making a blog post about the process afterwards in case you aren't able to make it.